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<head>
    <meta charset="UTF-8">
    <meta name="author" content="wangbo">
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    <title>练习题</title>
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    <div id="app">
        <div>
            <h1>组合的联系静态数据</h1>
            <div>
                <input type="text" name="" />
                <button type="button">按钮#4</button>
            </div>
            <ul id="myid">
                <li>aaa</li>
                <li>bbb</li>
                <li>ccc</li>
            </ul>
        </div>        
    </div>
</body>

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